Draw the straight-chain isomer with the formula (b) C₉H₂₀.

Question

Accepted Answer

All right. Hi everyone. So this question says to draw the structural formula of the straight chain isomer of the compound with the molecular formula C 12 H 26. Now recall first and foremost that a structural formula shows how atoms in a given compound are connected to each other. Now, they're very similar to Lewis structures in that sense, except when it comes to a structural formula, we do not show any electron piers. So very similar principle to a Lewis structure except no electron pairs are actually shown. No, just to confirm very quickly recall that all all canes have a structural formula of or molecular formula of CNH two N added to two where N is the number of carbons, right? So according to the molecular formula given N is equal to 12. So that's C 12, each two multiplied by 12 added to two. And this gives me the molecular formula of C 12 H 26. Now, the reason why I did this is to make sure that the compound we are to draw is actually an all can. So the idea here was to just confirm that there are no double or triple wands present in this molecule. So this is in fact an all king out because we are specifically drawing the straight chain isomer, then all 12 carbon atoms are going to be connected to each other in a straight line, 456789, 10, 11 and 12. So our next step is to go ahead and add all 26 hydrogens to the 12 carbons and recall that we do this to make sure that carbon has four bonds in total in line with its general preference, right. So the pattern that follows is that the carbons on either end of the chain require three hydrogens to ensure that it has all four bonds that it needs. Right? So the first carbon and the 12th carbon are each going to have three hydrogens to ensure that it has four bonds. And then because each internal carbon has two bonds to other atoms, each one is going to require two hydrogens again to make sure that it has or bots almost done here, right? Two hydrogens to each internal carbon and doing this should be add up to 26 hydrogens and there you have it, right. So here is the structural formula for the straight chain isomer of the compound with the molecular formula of C 12 H 26. And with that being said, thank you so very much for watching. And I hope we found this helpful

Draw the straight-chain isomer with the formula (b) C₉H₂₀.

Verified video answer for a similar problem:

Key Concepts

Isomerism

Straight-Chain Hydrocarbons

Structural Representation

Draw the straight-chain isomer with the formula (b) C9H20.

Verified video answer for a similar problem:

Key Concepts

Isomerism

Straight-Chain Hydrocarbons

Structural Representation

Draw the straight-chain isomer with the formula (b) C₉H₂₀.